is contains in javascript code example

Example 1: check if word is in string javascript

var str = "Hello world, welcome to the universe.";
var n = str.includes("world");

Example 2: angular string contains

var string = "foo";
var substring = "oo";

console.log(string.indexOf(substring) !== -1);

Example 3: javascript string contains

var string = "foo",
var substring = "oo";

console.log(string.includes(substring));